Add instrumentation and entity relationship support for AWS_APP_SYNC_API

[kford-newrelic]

Description

Add core instrumentation support for the AWS_APP_SYNC_API service to the Ruby Agent, along with necessary linking data for entity relationships.

Acceptance Criteria

When APM monitored applications are using the AWS_APP_SYNC_API service, entity relationships are created.

Design Consideration/Limitations

Assume the data to be emitted for linking will need to rely on ARN-like matching, requiring the AWS account ID to be available in some manner.

Dependencies

Assumes the pattern (agent spec?) defined by the Java Agent will be followed.

Additional context

N/A

[workato-integration]

https://new-relic.atlassian.net/browse/NR-323111

[kaylareopelle]

We have a working example that can make a request to an AppSync GraphQL endpoint. It generates the metric and attribute that will tentatively have the linking metadata. Blocked on this until the linking data is finalized.